CVE-2025-25227
HIGHCVE-2025-25227 is a high-severity (CVSS 7.5) Improper Authentication vulnerability in joomla/joomla-cms. O3 Security confirms whether CVE-2025-25227 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Joomla CMS Multi-Factor Authentication Bypass
Blast Radius
joomla/joomla-cms🐘joomla/joomla-cmsReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.
Description
Insufficient state checks lead to a vector that allows to bypass 2FA checks.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | joomla/joomla-cms | ≥ 5.0.0&&< 5.2.6 | 5.2.6 |
| 🐘Packagist | joomla/joomla-cms | ≥ 4.0.0&&< 4.4.13 | 4.4.13 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for joomla/joomla-cms. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update joomla/joomla-cms to 5.2.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2025-25227 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2025-25227 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2025-25227. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2025-25227 in your dependencies?
O3 detects CVE-2025-25227 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.